Single line clamshell are normally used by port authorities, ship owners/operators and private contractors on single line cranes and ship cranes. Their contents of the grabs can be dicharged by landing the full grab onto the stockpile and the mechanism is tripped open on touch-down. They can be opened in mid-air bby a tripping mechanism grabs can be opened in mid-air which is activated by pulling on a rope from either ground or dock level. Two-rope grabs are used ifwhere the crane has two independent rope drums, than two-rope grabs are used. Grabs are mainly used for digging, rehandling and dredging and offer full control. Four-rope grabs are used if where the crane has four operating wires on two drums than four rope grabs are used, each drum is having left and right hand grooves, two wires applied inused for holding and two for opening and closing. This fourrope configuration is usually used on the larger size grab handling heavy materials. Orange peel grabs are sometimes called cactus grabs which depends , depending upon the configuration of the tines [segments]. These motorised grabs are rope, hydraulic, air, or electro-hydraulically operated. Used mainly for scrap and rock handling duties. , tthesehey are suitable for other uses like handling logs, sugarcane and woodchips. Fully closedthe woodchip cactus grab when fully closed forms a complete spheroid or globe whichto prevent loss of a light airborne commodity. Hydraulic grabs are mainly used from excavators and backhoes in the construction industry, although their use is being found more in port environments, where aggregates are being loaded or discharged from vessels. Electro-hydraulic grabs, sometimes known referred to as the motorised grabs. These motorised grabs , are applied in used for rehandling work. These motorised grabs hey are very popular with ship operators because of their digging power and are having . Their controlled opening which makes them suitable for discharging into small hoppers and railwagons. Above mentioned varieties and many combinations of grabs are offered manufactured by bleijenberg grabs of the netherlands are available with batliboi. Batliboi , who can offer total package and engineered solutions to all materials handling problems.
